Indeed, the individual discrimination corresponds to a global individual fairness property by setting \(\delta _i = 0\)  in (REF ) for the non-sensitive attributes. Another definition of fairness[1]} states that two individuals are similar if their numerical features differ by no more than \(\alpha \) . Again, this can be represented by the closeness metric simply by setting \(\delta _i=0\)  for categorical attributes and \(\delta _i = \alpha \)  for numerical attributes.
